npm

npm (Node Package Manager) is the package manager that ships with Node.js. A modern program rarely runs on its own code alone: it relies on external building blocks, dependencies, listed in a project file (package.json). The npm install command reads that list and downloads everything needed, in the right versions. It’s the step right after the git clone of the TradingView MCP server: one command, a few seconds, and the program has everything it needs to run.